USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

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USGS 11315900 BEAR R BL LO BEAR R DAM CA

Amador County, California

Hydrologic Unit Code 18040012

Latitude 38°32'11", Longitude 120°15'24" NAD27

Drainage area 37.4 square miles

Gage datum 5,530 feet above NGVD29

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Meas. Number	Date Time	Time Datum	Measurement Used?	Who	Measuring Agency	Stream flow (ft³/s)	Gage Height (ft)	GH Change (ft)	Meas. Duration (hr)	Meas. Rated	Control	Flow Adjust. Code
1024	2025-09-29 11:29:53	PDT	Yes	HLMANZI	USGS	7.27	1.25	0.00		Fair	Clear	NONE
1023	2024-09-30 14:32:06	PDT	Yes	HLMANZI	USGS	8.00	1.25			Good	Clear	NONE
1022	2024-06-24 14:53:04	PDT	Yes	HLMANZI	USGS	22.7	2.08			Fair	Clear	NONE
1021	2023-09-25 15:07:05	PDT	Yes	HLMANZI	USGS	12.4	1.50	0.00	0.50	Fair		NONE
1020	2022-09-12 15:31:44	PDT	Yes	HLMANZI, YMP	USGS	8.22	1.28	0.00	0.50	Fair	Clear	NONE
1019	2021-09-23 09:37:38	PDT	Yes	HLMANZI	USGS	6.69	1.13	0.00	0.45	Fair	Clear	NONE
1018	2021-05-24 16:33:39	PDT	Yes	Hlmanzi	USGS	22.0	2.00			Fair	Clear	NONE
1017	2020-08-05 10:03:32	PDT	Yes	HLM	USGS	5.34	1.01	0.00	0.50	Fair	Clear	NONE
1016	2020-06-02 15:47:16	PDT	Yes	HLM	USGS	14.2	1.68	0.01	0.50	Fair	Clear	NONE
1015	2019-09-09 14:31:26	PDT	Yes	Hlm	USGS	12.2	1.50	0.00	0.50	Fair	Clear	NONE
1014	2018-08-27 18:09:19	PDT	Yes	HLM	USGS	7.28	1.20			Good	Clear	NONE
1013	2018-06-04 17:24:25	PDT	Yes	HLM	USGS	60.3	3.20	0.00	0.80	Fair	Clear	NONE
1012	2017-09-18 08:58:30	PDT	Yes	emp	USGS	10.0	1.39	0.00	0.40	Fair	Clear	NONE
1011	2016-09-20 18:41:30	PDT	Yes	emp	USGS	7.79	1.20	0.00	0.30	Fair	Clear	NONE
1010	2016-05-31 11:33:30	PDT	Yes	emp	USGS	83.7	3.59	-0.02	0.70	Poor	Clear	NONE
1009	2015-09-21 15:09:30	PDT	Yes	emp	USGS	5.03	1.01			Poor	Clear	NONE
1008	2015-09-21 14:04	PDT	Yes	emp	USGS	5.47	1.02			Good	Clear	NONE
1007	2015-04-27 12:58:30	PDT	Yes	emp	USGS	17.1	1.84	0.01	0.80	Fair	Clear	NONE
1006	2014-09-16 11:44	PDT	Yes	emp	USGS	5.99	1.06			Fair	VegetationLight	NONE
1005	2014-06-09 13:23	PDT	Yes	emp/AT	USGS	15.3	1.70			Fair	Clear	NONE
1004	2013-08-05 16:24	PDT	Yes	HLM	USGS	5.55	1.02	0.00	0.50	Good		NONE
1003	2013-06-03 16:09	PDT	Yes	HLM	USGS	31.2	2.37	0.00	0.80	Good	Clear	NONE
1002	2012-09-10 12:12:30	PDT	Yes	HLM	USGS	5.20	1.01	0.00	0.50	Fair	Clear	NONE
1001	2012-06-04 12:50	PDT	Yes	HLM	USGS	9.64				Unspecified	Clear	NONE
1000	2011-09-19 18:01:30	PDT	Yes	HLM	USGS	8.35	1.17	0.00	0.70	Fair	Clear	NONE

Meas.
Number

Date Time

Time
Datum

Measurement
Used?

Who

Measuring
Agency

Stream
flow
(ft³/s)

Gage
Height
(ft)

GH
Change
(ft)

Meas.
Duration
(hr)

Meas.
Rated

Control

Flow
Adjust.
Code

1024

2025-09-29 11:29:53

PDT

Yes

HLMANZI

USGS

7.27

1.25

0.00

Fair

Clear

NONE

1023

2024-09-30 14:32:06

PDT

Yes

HLMANZI

USGS

8.00

1.25

Good

Clear

NONE

1022

2024-06-24 14:53:04

PDT

Yes

HLMANZI

USGS

22.7

2.08

Fair

Clear

NONE

1021

2023-09-25 15:07:05

PDT

Yes

HLMANZI

USGS

12.4

1.50

0.00

0.50

Fair

NONE

1020

2022-09-12 15:31:44

PDT

Yes

HLMANZI, YMP

USGS

8.22

1.28

0.00

0.50

Fair

Clear

NONE

1019

2021-09-23 09:37:38

PDT

Yes

HLMANZI

USGS

6.69

1.13

0.00

0.45

Fair

Clear

NONE

1018

2021-05-24 16:33:39

PDT

Yes

Hlmanzi

USGS

22.0

2.00

Fair

Clear

NONE

1017

2020-08-05 10:03:32

PDT

Yes

HLM

USGS

5.34

1.01

0.00

0.50

Fair

Clear

NONE

1016

2020-06-02 15:47:16

PDT

Yes

HLM

USGS

14.2

1.68

0.01

0.50

Fair

Clear

NONE

1015

2019-09-09 14:31:26

PDT

Yes

Hlm

USGS

12.2

1.50

0.00

0.50

Fair

Clear

NONE

1014

2018-08-27 18:09:19

PDT

Yes

HLM

USGS

7.28

1.20

Good

Clear

NONE

1013

2018-06-04 17:24:25

PDT

Yes

HLM

USGS

60.3

3.20

0.00

0.80

Fair

Clear

NONE

1012

2017-09-18 08:58:30

PDT

Yes

emp

USGS

10.0

1.39

0.00

0.40

Fair

Clear

NONE

1011

2016-09-20 18:41:30

PDT

Yes

emp

USGS

7.79

1.20

0.00

0.30

Fair

Clear

NONE

1010

2016-05-31 11:33:30

PDT

Yes

emp

USGS

83.7

3.59

-0.02

0.70

Poor

Clear

NONE

1009

2015-09-21 15:09:30

PDT

Yes

emp

USGS

5.03

1.01

Poor

Clear

NONE

1008

2015-09-21 14:04

PDT

Yes

emp

USGS

5.47

1.02

Good

Clear

NONE

1007

2015-04-27 12:58:30

PDT

Yes

emp

USGS

17.1

1.84

0.01

0.80

Fair

Clear

NONE

1006

2014-09-16 11:44

PDT

Yes

emp

USGS

5.99

1.06

Fair

VegetationLight

NONE

1005

2014-06-09 13:23

PDT

Yes

emp/AT

USGS

15.3

1.70

Fair

Clear

NONE

1004

2013-08-05 16:24

PDT

Yes

HLM

USGS

5.55

1.02

0.00

0.50

Good

NONE

1003

2013-06-03 16:09

PDT

Yes

HLM

USGS

31.2

2.37

0.00

0.80

Good

Clear

NONE

1002

2012-09-10 12:12:30

PDT

Yes

HLM

USGS

5.20

1.01

0.00

0.50

Fair

Clear

NONE

1001

2012-06-04 12:50

PDT

Yes

HLM

USGS

9.64

Unspecified

Clear

NONE

1000

2011-09-19 18:01:30

PDT

Yes

HLM

USGS

8.35

1.17

0.00

0.70

Fair

Clear

NONE